Editing Penis and Urethra Surgery (section)

== Male Urethral Diverticulum ==

* '''Pathogenesis'''
** '''Congenital vs. acquired'''
*** '''Congenital: incomplete development of the urethra'''
**** '''A congenital diverticulum in the prostatic urethra may be a large remnant of the müllerian duct''' associated with defects of diminished virilization.
*** '''Injury of the urethra,''' which may cause an intraspongiosal hematoma
* '''Diagnosis and Evaluation'''
** '''The tip of a urethral catheter tends to catch in the diverticular opening, necessitating the use of something to direct the catheter tip toward the true lumen.'''
* '''Management'''
** '''Other than necessitating caution during evaluation, these diverticula do not usually cause problems or require treatment unless they are very large.'''
*** Large utricles can accumulate urine with voiding and then decompress after voiding. If they are large enough, the stasis of urine can be associated with recurrent urinary tract infection or difficult-to-manage “incontinence.”
** '''In many cases, endoscopic unroofing of the diverticulum remedies the voiding symptoms; although after unroofing, the patient commonly may note postvoid dribbling.'''
** '''Open repair essentially excises the redundancy of the urethra associated with the diverticulum.'''